Oil-Rite Corp B1357-11 Brass Liquid Level Gauges – Union Coupling Brass Liquid Level Gauges – Union Coupling, Threaded, 3-7/16″ L, 225°F (107.22° C) – Each

Pressure: Atmospheric pressure, cap is vented
Body: Brass
Cap: Brass
Union Coupling: Steel, plated; Brass gauges are used to indicate level of lubricating liquid supply at bearings, gear boxes, crank cases, transformers, switches etc. These gages are easily installed in any location having enough clearance for a one-piece oil gage.